You know those floaty, amoeba-shaped things you can see if you press your closed eyes with your hands then look at a bright light? When I was a kid and saw those damned things I convinced myself that I had a special power where I had some sort of “microscopic vision” talent. I thought I could control them. I couldn’t. But it was fun to think so. Yep, I was a weird little kid.

It still happens to me from time to time in my adult life, so I found this short TED-ed video—that explains exactly what that visual phenomenon is known as “floaters”—highly informative and fascinating.